Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2607
Title: Aligning the CMS muon chambers with the muon alignment system during an extended cosmic ray run
Authors: Demir, Durmuş Ali
CMS Collaboration
Keywords: Muon spectrometers
Large detector systems
Large Hadron Collider (LHC)
Compact Muon Solenoid
Cosmic Run At Four Tesla (CRAFT)
Issue Date: 2010
Publisher: IOP Publishing Ltd.
Source: Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Adam. W., Arnold, B., ...CMS Collaboration (2010). Aligning the CMS muon chambers with the muon alignment system during an extended cosmic ray run. Journal of Instrumentation, 5(3). doi:10.1088/1748-0221/5/03/T03019
Abstract: The alignment system for the muon spectrometer of the CMS detector comprises three independent subsystems of optical and analog position sensors. It aligns muon chambers with respect to each other and to the central silicon tracker. System commissioning at full magnetic field began in 2008 during an extended cosmic ray run. The system succeeded in tracking muon detector movements of up to 18 mm and rotations of several milliradians under magnetic forces. Depending on coordinate and subsystem, the system achieved chamber alignment precisions of 140-350 μm and 30-200 μrad, close to the precision requirements of the experiment. Systematic errors on absolute positions are estimated to be 340-590 μm based on comparisons with independent photogrammetry measurements. © 2010 IOP Publishing Ltd and SISSA.
URI: http://doi.org/10.1088/1748-0221/5/03/T03019
http://hdl.handle.net/11147/2607
ISSN: 1748-0221
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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